1 /*-
2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 *
12 * b) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the distribution.
15 *
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35
36 #ifndef _NETINET_SCTP_CONSTANTS_H_
37 #define _NETINET_SCTP_CONSTANTS_H_
38
39
40 /* IANA assigned port number for SCTP over UDP encapsulation */
41 #define SCTP_OVER_UDP_TUNNELING_PORT 9899
42
43 /* Number of packets to get before sack sent by default */
44 #define SCTP_DEFAULT_SACK_FREQ 2
45
46 /* Address limit - This variable is calculated
47 * based on an 65535 byte max ip packet. We take out 100 bytes
48 * for the cookie, 40 bytes for a v6 header and 32
49 * bytes for the init structure. A second init structure
50 * for the init-ack and then finally a third one for the
51 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes.
52 * This leaves 65299 bytes for addresses. We throw out the 299 bytes.
53 * Now whatever we send in the INIT() we need to allow to get back in the
54 * INIT-ACK plus all the values from INIT and INIT-ACK
55 * listed in the cookie. Plus we need some overhead for
56 * maybe copied parameters in the COOKIE. If we
57 * allow 1080 addresses, and each side has 1080 V6 addresses
58 * that will be 21600 bytes. In the INIT-ACK we will
59 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves
60 * about 500 bytes slack for misc things in the cookie.
61 */
62 #define SCTP_ADDRESS_LIMIT 1080
63
64 /* We need at least 2k of space for us, inits
65 * larger than that lets abort.
66 */
67 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048)
68
69 /* Largest length of a chunk */
70 #define SCTP_MAX_CHUNK_LENGTH 0xffff
71 /* Largest length of an error cause */
72 #define SCTP_MAX_CAUSE_LENGTH 0xffff
73 /* Number of addresses where we just skip the counting */
74 #define SCTP_COUNT_LIMIT 40
75
76 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000)
77 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000)
78
79 /* Number of ticks to delay before running
80 * iterator on an address change.
81 */
82 #define SCTP_ADDRESS_TICK_DELAY 2
83
84 #define SCTP_VERSION_STRING "KAME-BSD 1.1"
85 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */
86 #define SCTP_AUDIT_SIZE 256
87
88
89 #define SCTP_KTRHEAD_NAME "sctp_iterator"
90 #define SCTP_KTHREAD_PAGES 0
91
92 #define SCTP_MCORE_NAME "sctp_core_worker"
93
94
95 /* If you support Multi-VRF how big to
96 * make the initial array of VRF's to.
97 */
98 #define SCTP_DEFAULT_VRF_SIZE 4
99
100 /* JRS - Values defined for the HTCP algorithm */
101 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */
102 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */
103 #define BETA_MAX 102 /* 0.8 with shift << 7 */
104
105 /* Places that CWND log can happen from */
106 #define SCTP_CWND_LOG_FROM_FR 1
107 #define SCTP_CWND_LOG_FROM_RTX 2
108 #define SCTP_CWND_LOG_FROM_BRST 3
109 #define SCTP_CWND_LOG_FROM_SS 4
110 #define SCTP_CWND_LOG_FROM_CA 5
111 #define SCTP_CWND_LOG_FROM_SAT 6
112 #define SCTP_BLOCK_LOG_INTO_BLK 7
113 #define SCTP_BLOCK_LOG_OUTOF_BLK 8
114 #define SCTP_BLOCK_LOG_CHECK 9
115 #define SCTP_STR_LOG_FROM_INTO_STRD 10
116 #define SCTP_STR_LOG_FROM_IMMED_DEL 11
117 #define SCTP_STR_LOG_FROM_INSERT_HD 12
118 #define SCTP_STR_LOG_FROM_INSERT_MD 13
119 #define SCTP_STR_LOG_FROM_INSERT_TL 14
120 #define SCTP_STR_LOG_FROM_MARK_TSN 15
121 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16
122 #define SCTP_FR_LOG_BIGGEST_TSNS 17
123 #define SCTP_FR_LOG_STRIKE_TEST 18
124 #define SCTP_FR_LOG_STRIKE_CHUNK 19
125 #define SCTP_FR_T3_TIMEOUT 20
126 #define SCTP_MAP_PREPARE_SLIDE 21
127 #define SCTP_MAP_SLIDE_FROM 22
128 #define SCTP_MAP_SLIDE_RESULT 23
129 #define SCTP_MAP_SLIDE_CLEARED 24
130 #define SCTP_MAP_SLIDE_NONE 25
131 #define SCTP_FR_T3_MARK_TIME 26
132 #define SCTP_FR_T3_MARKED 27
133 #define SCTP_FR_T3_STOPPED 28
134 #define SCTP_FR_MARKED 30
135 #define SCTP_CWND_LOG_NOADV_SS 31
136 #define SCTP_CWND_LOG_NOADV_CA 32
137 #define SCTP_MAX_BURST_APPLIED 33
138 #define SCTP_MAX_IFP_APPLIED 34
139 #define SCTP_MAX_BURST_ERROR_STOP 35
140 #define SCTP_INCREASE_PEER_RWND 36
141 #define SCTP_DECREASE_PEER_RWND 37
142 #define SCTP_SET_PEER_RWND_VIA_SACK 38
143 #define SCTP_LOG_MBCNT_INCREASE 39
144 #define SCTP_LOG_MBCNT_DECREASE 40
145 #define SCTP_LOG_MBCNT_CHKSET 41
146 #define SCTP_LOG_NEW_SACK 42
147 #define SCTP_LOG_TSN_ACKED 43
148 #define SCTP_LOG_TSN_REVOKED 44
149 #define SCTP_LOG_LOCK_TCB 45
150 #define SCTP_LOG_LOCK_INP 46
151 #define SCTP_LOG_LOCK_SOCK 47
152 #define SCTP_LOG_LOCK_SOCKBUF_R 48
153 #define SCTP_LOG_LOCK_SOCKBUF_S 49
154 #define SCTP_LOG_LOCK_CREATE 50
155 #define SCTP_LOG_INITIAL_RTT 51
156 #define SCTP_LOG_RTTVAR 52
157 #define SCTP_LOG_SBALLOC 53
158 #define SCTP_LOG_SBFREE 54
159 #define SCTP_LOG_SBRESULT 55
160 #define SCTP_FR_DUPED 56
161 #define SCTP_FR_MARKED_EARLY 57
162 #define SCTP_FR_CWND_REPORT 58
163 #define SCTP_FR_CWND_REPORT_START 59
164 #define SCTP_FR_CWND_REPORT_STOP 60
165 #define SCTP_CWND_LOG_FROM_SEND 61
166 #define SCTP_CWND_INITIALIZATION 62
167 #define SCTP_CWND_LOG_FROM_T3 63
168 #define SCTP_CWND_LOG_FROM_SACK 64
169 #define SCTP_CWND_LOG_NO_CUMACK 65
170 #define SCTP_CWND_LOG_FROM_RESEND 66
171 #define SCTP_FR_LOG_CHECK_STRIKE 67
172 #define SCTP_SEND_NOW_COMPLETES 68
173 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69
174 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70
175 #define SCTP_LOG_FREE_SENT 71
176 #define SCTP_NAGLE_APPLIED 72
177 #define SCTP_NAGLE_SKIPPED 73
178 #define SCTP_WAKESND_FROM_SACK 74
179 #define SCTP_WAKESND_FROM_FWDTSN 75
180 #define SCTP_NOWAKE_FROM_SACK 76
181 #define SCTP_CWNDLOG_PRESEND 77
182 #define SCTP_CWNDLOG_ENDSEND 78
183 #define SCTP_AT_END_OF_SACK 79
184 #define SCTP_REASON_FOR_SC 80
185 #define SCTP_BLOCK_LOG_INTO_BLKA 81
186 #define SCTP_ENTER_USER_RECV 82
187 #define SCTP_USER_RECV_SACKS 83
188 #define SCTP_SORECV_BLOCKSA 84
189 #define SCTP_SORECV_BLOCKSB 85
190 #define SCTP_SORECV_DONE 86
191 #define SCTP_SACK_RWND_UPDATE 87
192 #define SCTP_SORECV_ENTER 88
193 #define SCTP_SORECV_ENTERPL 89
194 #define SCTP_MBUF_INPUT 90
195 #define SCTP_MBUF_IALLOC 91
196 #define SCTP_MBUF_IFREE 92
197 #define SCTP_MBUF_ICOPY 93
198 #define SCTP_MBUF_SPLIT 94
199 #define SCTP_SORCV_FREECTL 95
200 #define SCTP_SORCV_DOESCPY 96
201 #define SCTP_SORCV_DOESLCK 97
202 #define SCTP_SORCV_DOESADJ 98
203 #define SCTP_SORCV_BOTWHILE 99
204 #define SCTP_SORCV_PASSBF 100
205 #define SCTP_SORCV_ADJD 101
206 #define SCTP_UNKNOWN_MAX 102
207 #define SCTP_RANDY_STUFF 103
208 #define SCTP_RANDY_STUFF1 104
209 #define SCTP_STRMOUT_LOG_ASSIGN 105
210 #define SCTP_STRMOUT_LOG_SEND 106
211 #define SCTP_FLIGHT_LOG_DOWN_CA 107
212 #define SCTP_FLIGHT_LOG_UP 108
213 #define SCTP_FLIGHT_LOG_DOWN_GAP 109
214 #define SCTP_FLIGHT_LOG_DOWN_RSND 110
215 #define SCTP_FLIGHT_LOG_UP_RSND 111
216 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112
217 #define SCTP_FLIGHT_LOG_DOWN_WP 113
218 #define SCTP_FLIGHT_LOG_UP_REVOKE 114
219 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115
220 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116
221 #define SCTP_SACK_LOG_NORMAL 117
222 #define SCTP_SACK_LOG_EXPRESS 118
223 #define SCTP_MAP_TSN_ENTERS 119
224 #define SCTP_THRESHOLD_CLEAR 120
225 #define SCTP_THRESHOLD_INCR 121
226 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122
227 #define SCTP_FWD_TSN_CHECK 123
228 #define SCTP_LOG_MAX_TYPES 124
229 /*
230 * To turn on various logging, you must first enable 'options KTR' and
231 * you might want to bump the entires 'options KTR_ENTRIES=80000'.
232 * To get something to log you define one of the logging defines.
233 * (see LINT).
234 *
235 * This gets the compile in place, but you still need to turn the
236 * logging flag on too in the sysctl (see in sctp.h).
237 */
238
239 #define SCTP_LOG_EVENT_UNKNOWN 0
240 #define SCTP_LOG_EVENT_CWND 1
241 #define SCTP_LOG_EVENT_BLOCK 2
242 #define SCTP_LOG_EVENT_STRM 3
243 #define SCTP_LOG_EVENT_FR 4
244 #define SCTP_LOG_EVENT_MAP 5
245 #define SCTP_LOG_EVENT_MAXBURST 6
246 #define SCTP_LOG_EVENT_RWND 7
247 #define SCTP_LOG_EVENT_MBCNT 8
248 #define SCTP_LOG_EVENT_SACK 9
249 #define SCTP_LOG_LOCK_EVENT 10
250 #define SCTP_LOG_EVENT_RTT 11
251 #define SCTP_LOG_EVENT_SB 12
252 #define SCTP_LOG_EVENT_NAGLE 13
253 #define SCTP_LOG_EVENT_WAKE 14
254 #define SCTP_LOG_MISC_EVENT 15
255 #define SCTP_LOG_EVENT_CLOSE 16
256 #define SCTP_LOG_EVENT_MBUF 17
257 #define SCTP_LOG_CHUNK_PROC 18
258 #define SCTP_LOG_ERROR_RET 19
259
260 #define SCTP_LOG_MAX_EVENT 20
261
262 #define SCTP_LOCK_UNKNOWN 2
263
264
265 /* number of associations by default for zone allocation */
266 #define SCTP_MAX_NUM_OF_ASOC 40000
267 /* how many addresses per assoc remote and local */
268 #define SCTP_SCALE_FOR_ADDR 2
269
270 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */
271 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0
272
273 /*
274 * Threshold for rwnd updates, we have to read (sb_hiwat >>
275 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a
276 * window update sack. When we look, we compare the last rwnd we sent vs the
277 * current rwnd. It too must be greater than this value. Using 3 divdes the
278 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need
279 * to read 8k. This seems about right.. I hope :-D.. we do set a
280 * min of a MTU on it so if the rwnd is real small we will insist
281 * on a full MTU of 1500 bytes.
282 */
283 #define SCTP_RWND_HIWAT_SHIFT 3
284
285 /* How much of the rwnd must the
286 * message be taking up to start partial delivery.
287 * We calculate this by shifing the hi_water (recv_win)
288 * left the following .. set to 1, when a message holds
289 * 1/2 the rwnd. If we set it to 2 when a message holds
290 * 1/4 the rwnd...etc..
291 */
292
293 #define SCTP_PARTIAL_DELIVERY_SHIFT 1
294
295 /*
296 * default HMAC for cookies, etc... use one of the AUTH HMAC id's
297 * SCTP_HMAC is the HMAC_ID to use
298 * SCTP_SIGNATURE_SIZE is the digest length
299 */
300 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1
301 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1
302 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE
303
304 /*
305 * the SCTP protocol signature this includes the version number encoded in
306 * the last 4 bits of the signature.
307 */
308 #define PROTO_SIGNATURE_A 0x30000000
309 #define SCTP_VERSION_NUMBER 0x3
310
311 #define MAX_TSN 0xffffffff
312
313 /* how many executions every N tick's */
314 #define SCTP_ITERATOR_MAX_AT_ONCE 20
315
316 /* number of clock ticks between iterator executions */
317 #define SCTP_ITERATOR_TICKS 1
318
319 /*
320 * option: If you comment out the following you will receive the old behavior
321 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR
322 * happens right away with-out waiting for the flightsize to drop below the
323 * cwnd value (which is reduced by the FR to 1/2 the inflight packets).
324 */
325 #define SCTP_IGNORE_CWND_ON_FR 1
326
327 /*
328 * Adds implementors guide behavior to only use newest highest update in SACK
329 * gap ack's to figure out if you need to stroke a chunk for FR.
330 */
331 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1
332
333 /* default max I can burst out after a fast retransmit, 0 disables it */
334 #define SCTP_DEF_MAX_BURST 4
335 #define SCTP_DEF_HBMAX_BURST 4
336 #define SCTP_DEF_FRMAX_BURST 4
337
338 /* RTO calculation flag to say if it
339 * is safe to determine local lan or not.
340 */
341 #define SCTP_RTT_FROM_NON_DATA 0
342 #define SCTP_RTT_FROM_DATA 1
343
344 #define PR_SCTP_UNORDERED_FLAG 0x0001
345
346 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */
347 #define SCTP_FIRST_MBUF_RESV 68
348 /* Packet transmit states in the sent field */
349 #define SCTP_DATAGRAM_UNSENT 0
350 #define SCTP_DATAGRAM_SENT 1
351 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may
352 * hit this value) */
353 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may
354 * hit this value) */
355 #define SCTP_DATAGRAM_RESEND 4
356 #define SCTP_DATAGRAM_ACKED 10010
357 #define SCTP_DATAGRAM_MARKED 20010
358 #define SCTP_FORWARD_TSN_SKIP 30010
359 #define SCTP_DATAGRAM_NR_ACKED 40010
360
361 /* chunk output send from locations */
362 #define SCTP_OUTPUT_FROM_USR_SEND 0
363 #define SCTP_OUTPUT_FROM_T3 1
364 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2
365 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3
366 #define SCTP_OUTPUT_FROM_SACK_TMR 4
367 #define SCTP_OUTPUT_FROM_SHUT_TMR 5
368 #define SCTP_OUTPUT_FROM_HB_TMR 6
369 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7
370 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8
371 #define SCTP_OUTPUT_FROM_STRRST_TMR 9
372 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10
373 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11
374 #define SCTP_OUTPUT_FROM_STRRST_REQ 12
375 #define SCTP_OUTPUT_FROM_USR_RCVD 13
376 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14
377 #define SCTP_OUTPUT_FROM_DRAIN 15
378 #define SCTP_OUTPUT_FROM_CLOSING 16
379 #define SCTP_OUTPUT_FROM_SOCKOPT 17
380
381 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */
382
383 /* align to 32-bit sizes */
384 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2)
385
386 #define IS_SCTP_CONTROL(a) (((a)->chunk_type != SCTP_DATA) && ((a)->chunk_type != SCTP_IDATA))
387 #define IS_SCTP_DATA(a) (((a)->chunk_type == SCTP_DATA) || ((a)->chunk_type == SCTP_IDATA))
388
389
390 /* SCTP parameter types */
391 /*************0x0000 series*************/
392 #define SCTP_HEARTBEAT_INFO 0x0001
393 #define SCTP_IPV4_ADDRESS 0x0005
394 #define SCTP_IPV6_ADDRESS 0x0006
395 #define SCTP_STATE_COOKIE 0x0007
396 #define SCTP_UNRECOG_PARAM 0x0008
397 #define SCTP_COOKIE_PRESERVE 0x0009
398 #define SCTP_HOSTNAME_ADDRESS 0x000b
399 #define SCTP_SUPPORTED_ADDRTYPE 0x000c
400
401 /* RFC 6525 */
402 #define SCTP_STR_RESET_OUT_REQUEST 0x000d
403 #define SCTP_STR_RESET_IN_REQUEST 0x000e
404 #define SCTP_STR_RESET_TSN_REQUEST 0x000f
405 #define SCTP_STR_RESET_RESPONSE 0x0010
406 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011
407 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012
408
409 #define SCTP_MAX_RESET_PARAMS 2
410 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000
411
412 /*************0x4000 series*************/
413
414 /*************0x8000 series*************/
415 #define SCTP_ECN_CAPABLE 0x8000
416
417 /* RFC 4895 */
418 #define SCTP_RANDOM 0x8002
419 #define SCTP_CHUNK_LIST 0x8003
420 #define SCTP_HMAC_LIST 0x8004
421 /* RFC 4820 */
422 #define SCTP_PAD 0x8005
423 /* RFC 5061 */
424 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008
425
426 /*************0xC000 series*************/
427 #define SCTP_PRSCTP_SUPPORTED 0xc000
428 /* RFC 5061 */
429 #define SCTP_ADD_IP_ADDRESS 0xc001
430 #define SCTP_DEL_IP_ADDRESS 0xc002
431 #define SCTP_ERROR_CAUSE_IND 0xc003
432 #define SCTP_SET_PRIM_ADDR 0xc004
433 #define SCTP_SUCCESS_REPORT 0xc005
434 #define SCTP_ULP_ADAPTATION 0xc006
435 /* behave-nat-draft */
436 #define SCTP_HAS_NAT_SUPPORT 0xc007
437 #define SCTP_NAT_VTAGS 0xc008
438
439 /* bits for TOS field */
440 #define SCTP_ECT0_BIT 0x02
441 #define SCTP_ECT1_BIT 0x01
442 #define SCTP_CE_BITS 0x03
443
444 /* below turns off above */
445 #define SCTP_FLEXIBLE_ADDRESS 0x20
446 #define SCTP_NO_HEARTBEAT 0x40
447
448 /* mask to get sticky */
449 #define SCTP_STICKY_OPTIONS_MASK 0x0c
450
451
452 /*
453 * SCTP states for internal state machine
454 */
455 #define SCTP_STATE_EMPTY 0x0000
456 #define SCTP_STATE_INUSE 0x0001
457 #define SCTP_STATE_COOKIE_WAIT 0x0002
458 #define SCTP_STATE_COOKIE_ECHOED 0x0004
459 #define SCTP_STATE_OPEN 0x0008
460 #define SCTP_STATE_SHUTDOWN_SENT 0x0010
461 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020
462 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040
463 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080
464 #define SCTP_STATE_CLOSED_SOCKET 0x0100
465 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200
466 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400
467 #define SCTP_STATE_WAS_ABORTED 0x0800
468 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000
469 #define SCTP_STATE_MASK 0x007f
470
471 #define SCTP_GET_STATE(_stcb) \
472 ((_stcb)->asoc.state & SCTP_STATE_MASK)
473 #define SCTP_SET_STATE(_stcb, _state) \
474 (_stcb)->asoc.state = ((_stcb)->asoc.state & ~SCTP_STATE_MASK) | (_state)
475 #define SCTP_CLEAR_SUBSTATE(_stcb, _substate) \
476 (_stcb)->asoc.state &= ~(_substate)
477 #define SCTP_ADD_SUBSTATE(_stcb, _substate) \
478 (_stcb)->asoc.state |= (_substate)
479
480 /* SCTP reachability state for each address */
481 #define SCTP_ADDR_REACHABLE 0x001
482 #define SCTP_ADDR_NO_PMTUD 0x002
483 #define SCTP_ADDR_NOHB 0x004
484 #define SCTP_ADDR_BEING_DELETED 0x008
485 #define SCTP_ADDR_NOT_IN_ASSOC 0x010
486 #define SCTP_ADDR_OUT_OF_SCOPE 0x080
487 #define SCTP_ADDR_UNCONFIRMED 0x200
488 #define SCTP_ADDR_REQ_PRIMARY 0x400
489 /* JRS 5/13/07 - Added potentially failed state for CMT PF */
490 #define SCTP_ADDR_PF 0x800
491
492 /* bound address types (e.g. valid address types to allow) */
493 #define SCTP_BOUND_V6 0x01
494 #define SCTP_BOUND_V4 0x02
495
496 /*
497 * what is the default number of mbufs in a chain I allow before switching to
498 * a cluster
499 */
500 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5
501
502 /* How long a cookie lives in milli-seconds */
503 #define SCTP_DEFAULT_COOKIE_LIFE 60000
504
505 /* Maximum the mapping array will grow to (TSN mapping array) */
506 #define SCTP_MAPPING_ARRAY 512
507
508 /* size of the initial malloc on the mapping array */
509 #define SCTP_INITIAL_MAPPING_ARRAY 16
510 /* how much we grow the mapping array each call */
511 #define SCTP_MAPPING_ARRAY_INCR 32
512
513 /*
514 * Here we define the timer types used by the implementation as arguments in
515 * the set/get timer type calls.
516 */
517 #define SCTP_TIMER_INIT 0
518 #define SCTP_TIMER_RECV 1
519 #define SCTP_TIMER_SEND 2
520 #define SCTP_TIMER_HEARTBEAT 3
521 #define SCTP_TIMER_PMTU 4
522 #define SCTP_TIMER_MAXSHUTDOWN 5
523 #define SCTP_TIMER_SIGNATURE 6
524 /*
525 * number of timer types in the base SCTP structure used in the set/get and
526 * has the base default.
527 */
528 #define SCTP_NUM_TMRS 7
529
530 /* timer types */
531 #define SCTP_TIMER_TYPE_NONE 0
532 #define SCTP_TIMER_TYPE_SEND 1
533 #define SCTP_TIMER_TYPE_INIT 2
534 #define SCTP_TIMER_TYPE_RECV 3
535 #define SCTP_TIMER_TYPE_SHUTDOWN 4
536 #define SCTP_TIMER_TYPE_HEARTBEAT 5
537 #define SCTP_TIMER_TYPE_COOKIE 6
538 #define SCTP_TIMER_TYPE_NEWCOOKIE 7
539 #define SCTP_TIMER_TYPE_PATHMTURAISE 8
540 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9
541 #define SCTP_TIMER_TYPE_ASCONF 10
542 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11
543 #define SCTP_TIMER_TYPE_AUTOCLOSE 12
544 #define SCTP_TIMER_TYPE_STRRESET 13
545 #define SCTP_TIMER_TYPE_INPKILL 14
546 #define SCTP_TIMER_TYPE_ASOCKILL 15
547 #define SCTP_TIMER_TYPE_ADDR_WQ 16
548 #define SCTP_TIMER_TYPE_PRIM_DELETED 17
549 /* add new timers here - and increment LAST */
550 #define SCTP_TIMER_TYPE_LAST 18
551
552 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \
553 ((t) < SCTP_TIMER_TYPE_LAST))
554
555
556
557 /* max number of TSN's dup'd that I will hold */
558 #define SCTP_MAX_DUP_TSNS 20
559
560 /*
561 * Here we define the types used when setting the retry amounts.
562 */
563 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */
564 #define SCTP_RETRY_DROPPED_THRESH 4
565
566 /*
567 * Maxmium number of chunks a single association can have on it. Note that
568 * this is a squishy number since the count can run over this if the user
569 * sends a large message down .. the fragmented chunks don't count until
570 * AFTER the message is on queue.. it would be the next send that blocks
571 * things. This number will get tuned up at boot in the sctp_init and use the
572 * number of clusters as a base. This way high bandwidth environments will
573 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks
574 */
575 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512
576
577
578 /* The conversion from time to ticks and vice versa is done by rounding
579 * upwards. This way we can test in the code the time to be positive and
580 * know that this corresponds to a positive number of ticks.
581 */
582 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000))
583 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz))
584
585 #define SEC_TO_TICKS(x) ((x) * hz)
586 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz)
587
588 /*
589 * Basically the minimum amount of time before I do a early FR. Making this
590 * value to low will cause duplicate retransmissions.
591 */
592 #define SCTP_MINFR_MSEC_TIMER 250
593 /* The floor this value is allowed to fall to when starting a timer. */
594 #define SCTP_MINFR_MSEC_FLOOR 20
595
596 /* init timer def = 1 sec */
597 #define SCTP_INIT_SEC 1
598
599 /* send timer def = 1 seconds */
600 #define SCTP_SEND_SEC 1
601
602 /* recv timer def = 200ms */
603 #define SCTP_RECV_MSEC 200
604
605 /* 30 seconds + RTO (in ms) */
606 #define SCTP_HB_DEFAULT_MSEC 30000
607
608 /*
609 * This is how long a secret lives, NOT how long a cookie lives how many
610 * ticks the current secret will live.
611 */
612 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600
613
614 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */
615 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */
616 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */
617
618
619 #define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */
620 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */
621
622 #define SCTP_DEF_MAX_INIT 8
623 #define SCTP_DEF_MAX_SEND 10
624 #define SCTP_DEF_MAX_PATH_RTX 5
625 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX
626
627 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */
628
629
630 /* How many streams I request initially by default */
631 #define SCTP_OSTREAM_INITIAL 10
632 #define SCTP_ISTREAM_INITIAL 2048
633
634 /*
635 * How many smallest_mtu's need to increase before a window update sack is
636 * sent (should be a power of 2).
637 */
638 /* Send window update (incr * this > hiwat). Should be a power of 2 */
639 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */
640
641 #define SCTP_ADDRMAX 16
642
643 /* SCTP DEBUG Switch parameters */
644 #define SCTP_DEBUG_TIMER1 0x00000001
645 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */
646 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */
647 #define SCTP_DEBUG_TIMER4 0x00000008
648 #define SCTP_DEBUG_OUTPUT1 0x00000010
649 #define SCTP_DEBUG_OUTPUT2 0x00000020
650 #define SCTP_DEBUG_OUTPUT3 0x00000040
651 #define SCTP_DEBUG_OUTPUT4 0x00000080
652 #define SCTP_DEBUG_UTIL1 0x00000100
653 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */
654 #define SCTP_DEBUG_AUTH1 0x00000400
655 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */
656 #define SCTP_DEBUG_INPUT1 0x00001000
657 #define SCTP_DEBUG_INPUT2 0x00002000
658 #define SCTP_DEBUG_INPUT3 0x00004000
659 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */
660 #define SCTP_DEBUG_ASCONF1 0x00010000
661 #define SCTP_DEBUG_ASCONF2 0x00020000
662 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */
663 #define SCTP_DEBUG_XXX 0x00080000 /* unused */
664 #define SCTP_DEBUG_PCB1 0x00100000
665 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */
666 #define SCTP_DEBUG_PCB3 0x00400000
667 #define SCTP_DEBUG_PCB4 0x00800000
668 #define SCTP_DEBUG_INDATA1 0x01000000
669 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */
670 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */
671 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */
672 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */
673 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */
674 #define SCTP_DEBUG_PEEL1 0x40000000
675 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */
676 #define SCTP_DEBUG_ALL 0x7ff3ffff
677 #define SCTP_DEBUG_NOISY 0x00040000
678
679 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */
680 #define SCTP_SWS_SENDER_DEF 1420
681
682 /*
683 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1
684 * would be hiwat/2 etc.
685 */
686 /* What receiver needs to see in sockbuf or we tell peer its 1 */
687 #define SCTP_SWS_RECEIVER_DEF 3000
688
689 #define SCTP_INITIAL_CWND 4380
690
691 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */
692 /* amount peer is obligated to have in rwnd or I will abort */
693 #define SCTP_MIN_RWND 1500
694
695 #define SCTP_DEFAULT_MAXSEGMENT 65535
696
697 #define SCTP_CHUNK_BUFFER_SIZE 512
698 #define SCTP_PARAM_BUFFER_SIZE 512
699
700 /* small chunk store for looking at chunk_list in auth */
701 #define SCTP_SMALL_CHUNK_STORE 260
702
703 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */
704
705 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */
706 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */
707
708
709 /*
710 * SCTP upper layer notifications
711 */
712 #define SCTP_NOTIFY_ASSOC_UP 1
713 #define SCTP_NOTIFY_ASSOC_DOWN 2
714 #define SCTP_NOTIFY_INTERFACE_DOWN 3
715 #define SCTP_NOTIFY_INTERFACE_UP 4
716 #define SCTP_NOTIFY_SENT_DG_FAIL 5
717 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6
718 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7
719 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8
720 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9
721 #define SCTP_NOTIFY_ASSOC_RESTART 10
722 #define SCTP_NOTIFY_PEER_SHUTDOWN 11
723 #define SCTP_NOTIFY_ASCONF_ADD_IP 12
724 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13
725 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14
726 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15
727 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16
728 #define SCTP_NOTIFY_STR_RESET_RECV 17
729 #define SCTP_NOTIFY_STR_RESET_SEND 18
730 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19
731 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20
732 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21
733 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22
734 #define SCTP_NOTIFY_AUTH_NEW_KEY 23
735 #define SCTP_NOTIFY_AUTH_FREE_KEY 24
736 #define SCTP_NOTIFY_NO_PEER_AUTH 25
737 #define SCTP_NOTIFY_SENDER_DRY 26
738 #define SCTP_NOTIFY_REMOTE_ERROR 27
739
740 /* This is the value for messages that are NOT completely
741 * copied down where we will start to split the message.
742 * So, with our default, we split only if the piece we
743 * want to take will fill up a full MTU (assuming
744 * a 1500 byte MTU).
745 */
746 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904
747
748 /* Maximum length of diagnostic information in error causes */
749 #define SCTP_DIAG_INFO_LEN 128
750
751 /* ABORT CODES and other tell-tale location
752 * codes are generated by adding the below
753 * to the instance id.
754 */
755
756 /* File defines */
757 #define SCTP_FROM_SCTP_INPUT 0x10000000
758 #define SCTP_FROM_SCTP_PCB 0x20000000
759 #define SCTP_FROM_SCTP_INDATA 0x30000000
760 #define SCTP_FROM_SCTP_TIMER 0x40000000
761 #define SCTP_FROM_SCTP_USRREQ 0x50000000
762 #define SCTP_FROM_SCTPUTIL 0x60000000
763 #define SCTP_FROM_SCTP6_USRREQ 0x70000000
764 #define SCTP_FROM_SCTP_ASCONF 0x80000000
765 #define SCTP_FROM_SCTP_OUTPUT 0x90000000
766 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000
767 #define SCTP_FROM_SCTP_PANDA 0xb0000000
768 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000
769 #define SCTP_FROM_SCTP_CC_FUNCTIONS 0xd0000000
770
771 /* Location ID's */
772 #define SCTP_LOC_1 0x00000001
773 #define SCTP_LOC_2 0x00000002
774 #define SCTP_LOC_3 0x00000003
775 #define SCTP_LOC_4 0x00000004
776 #define SCTP_LOC_5 0x00000005
777 #define SCTP_LOC_6 0x00000006
778 #define SCTP_LOC_7 0x00000007
779 #define SCTP_LOC_8 0x00000008
780 #define SCTP_LOC_9 0x00000009
781 #define SCTP_LOC_10 0x0000000a
782 #define SCTP_LOC_11 0x0000000b
783 #define SCTP_LOC_12 0x0000000c
784 #define SCTP_LOC_13 0x0000000d
785 #define SCTP_LOC_14 0x0000000e
786 #define SCTP_LOC_15 0x0000000f
787 #define SCTP_LOC_16 0x00000010
788 #define SCTP_LOC_17 0x00000011
789 #define SCTP_LOC_18 0x00000012
790 #define SCTP_LOC_19 0x00000013
791 #define SCTP_LOC_20 0x00000014
792 #define SCTP_LOC_21 0x00000015
793 #define SCTP_LOC_22 0x00000016
794 #define SCTP_LOC_23 0x00000017
795 #define SCTP_LOC_24 0x00000018
796 #define SCTP_LOC_25 0x00000019
797 #define SCTP_LOC_26 0x0000001a
798 #define SCTP_LOC_27 0x0000001b
799 #define SCTP_LOC_28 0x0000001c
800 #define SCTP_LOC_29 0x0000001d
801 #define SCTP_LOC_30 0x0000001e
802 #define SCTP_LOC_31 0x0000001f
803 #define SCTP_LOC_32 0x00000020
804 #define SCTP_LOC_33 0x00000021
805 #define SCTP_LOC_34 0x00000022
806 #define SCTP_LOC_35 0x00000023
807 #define SCTP_LOC_36 0x00000024
808
809 /* Free assoc codes */
810 #define SCTP_NORMAL_PROC 0
811 #define SCTP_PCBFREE_NOFORCE 1
812 #define SCTP_PCBFREE_FORCE 2
813
814 /* From codes for adding addresses */
815 #define SCTP_ADDR_IS_CONFIRMED 8
816 #define SCTP_ADDR_DYNAMIC_ADDED 6
817 #define SCTP_IN_COOKIE_PROC 100
818 #define SCTP_ALLOC_ASOC 1
819 #define SCTP_LOAD_ADDR_2 2
820 #define SCTP_LOAD_ADDR_3 3
821 #define SCTP_LOAD_ADDR_4 4
822 #define SCTP_LOAD_ADDR_5 5
823
824 #define SCTP_DONOT_SETSCOPE 0
825 #define SCTP_DO_SETSCOPE 1
826
827
828 /* This value determines the default for when
829 * we try to add more on the send queue., if
830 * there is room. This prevents us from cycling
831 * into the copy_resume routine to often if
832 * we have not got enough space to add a decent
833 * enough size message. Note that if we have enough
834 * space to complete the message copy we will always
835 * add to the message, no matter what the size. Its
836 * only when we reach the point that we have some left
837 * to add, there is only room for part of it that we
838 * will use this threshold. Its also a sysctl.
839 */
840 #define SCTP_DEFAULT_ADD_MORE 1452
841
842 #ifndef SCTP_PCBHASHSIZE
843 /* default number of association hash buckets in each endpoint */
844 #define SCTP_PCBHASHSIZE 256
845 #endif
846 #ifndef SCTP_TCBHASHSIZE
847 #define SCTP_TCBHASHSIZE 1024
848 #endif
849
850 #ifndef SCTP_CHUNKQUEUE_SCALE
851 #define SCTP_CHUNKQUEUE_SCALE 10
852 #endif
853
854 /* clock variance is 1 ms */
855 #define SCTP_CLOCK_GRANULARITY 1
856 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this
857 * detracts a small amount for ipv4 but it
858 * simplifies the ipv6 addition */
859
860 /* Argument magic number for sctp_inpcb_free() */
861
862 /* third argument */
863 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0
864 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1
865 #define SCTP_CALLED_FROM_INPKILL_TIMER 2
866 /* second argument */
867 #define SCTP_FREE_SHOULD_USE_ABORT 1
868 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0
869
870 #ifndef IPPROTO_SCTP
871 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */
872 #endif /* !IPPROTO_SCTP */
873
874 #define SCTP_MAX_DATA_BUNDLING 256
875
876 /* modular comparison */
877 /* See RFC 1982 for details. */
878 #define SCTP_UINT16_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \
879 ((a > b) && ((uint16_t)(a - b) < (1U<<15))))
880 #define SCTP_UINT16_GE(a, b) (SCTP_UINT16_GT(a, b) || (a == b))
881 #define SCTP_UINT32_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \
882 ((a > b) && ((uint32_t)(a - b) < (1U<<31))))
883 #define SCTP_UINT32_GE(a, b) (SCTP_UINT32_GT(a, b) || (a == b))
884
885 #define SCTP_SSN_GT(a, b) SCTP_UINT16_GT(a, b)
886 #define SCTP_SSN_GE(a, b) SCTP_UINT16_GE(a, b)
887 #define SCTP_TSN_GT(a, b) SCTP_UINT32_GT(a, b)
888 #define SCTP_TSN_GE(a, b) SCTP_UINT32_GE(a, b)
889 #define SCTP_MID_GT(i, a, b) (((i) == 1) ? SCTP_UINT32_GT(a, b) : SCTP_UINT16_GT((uint16_t)a, (uint16_t)b))
890 #define SCTP_MID_GE(i, a, b) (((i) == 1) ? SCTP_UINT32_GE(a, b) : SCTP_UINT16_GE((uint16_t)a, (uint16_t)b))
891 #define SCTP_MID_EQ(i, a, b) (((i) == 1) ? a == b : (uint16_t)a == (uint16_t)b)
892
893 /* Mapping array manipulation routines */
894 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01)
895 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07))))
896 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff))
897 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \
898 if (tsn >= mapping_tsn) { \
899 gap = tsn - mapping_tsn; \
900 } else { \
901 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \
902 } \
903 } while (0)
904
905
906 #define SCTP_RETRAN_DONE -1
907 #define SCTP_RETRAN_EXIT -2
908
909 /*
910 * This value defines the number of vtag block time wait entry's per list
911 * element. Each entry will take 2 4 byte ints (and of course the overhead
912 * of the next pointer as well). Using 15 as an example will yield * ((8 *
913 * 15) + 8) or 128 bytes of overhead for each timewait block that gets
914 * initialized. Increasing it to 31 would yield 256 bytes per block.
915 */
916 #define SCTP_NUMBER_IN_VTAG_BLOCK 15
917 /*
918 * If we use the STACK option, we have an array of this size head pointers.
919 * This array is mod'd the with the size to find which bucket and then all
920 * entries must be searched to see if the tag is in timed wait. If so we
921 * reject it.
922 */
923 #define SCTP_STACK_VTAG_HASH_SIZE 32
924
925 /*
926 * Number of seconds of time wait for a vtag.
927 */
928 #define SCTP_TIME_WAIT 60
929
930 /* How many micro seconds is the cutoff from
931 * local lan type rtt's
932 */
933 /*
934 * We allow 900us for the rtt.
935 */
936 #define SCTP_LOCAL_LAN_RTT 900
937 #define SCTP_LAN_UNKNOWN 0
938 #define SCTP_LAN_LOCAL 1
939 #define SCTP_LAN_INTERNET 2
940
941 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001
942 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002
943
944 /* The system retains a cache of free chunks such to
945 * cut down on calls the memory allocation system. There
946 * is a per association limit of free items and a overall
947 * system limit. If either one gets hit then the resource
948 * stops being cached.
949 */
950
951 #define SCTP_DEF_ASOC_RESC_LIMIT 10
952 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000
953
954 /*-
955 * defines for socket lock states.
956 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING
957 */
958 #define SCTP_SO_LOCKED 1
959 #define SCTP_SO_NOT_LOCKED 0
960
961
962 /*-
963 * For address locks, do we hold the lock?
964 */
965 #define SCTP_ADDR_LOCKED 1
966 #define SCTP_ADDR_NOT_LOCKED 0
967
968 #define IN4_ISPRIVATE_ADDRESS(a) \
969 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \
970 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \
971 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \
972 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \
973 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \
974 (((uint8_t *)&(a)->s_addr)[1] == 168)))
975
976 #define IN4_ISLOOPBACK_ADDRESS(a) \
977 (((uint8_t *)&(a)->s_addr)[0] == 127)
978
979 #define IN4_ISLINKLOCAL_ADDRESS(a) \
980 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \
981 (((uint8_t *)&(a)->s_addr)[1] == 254))
982
983 /* Maximum size of optval for IPPROTO_SCTP level socket options. */
984 #define SCTP_SOCKET_OPTION_LIMIT (64 * 1024)
985
986
987 #if defined(_KERNEL)
988 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x))
989 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x))
990 #endif
991
992 #if defined(_KERNEL) || defined(__Userspace__)
993 #define sctp_sowwakeup(inp, so) \
994 do { \
995 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
996 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \
997 } else { \
998 sowwakeup(so); \
999 } \
1000 } while (0)
1001
1002 #define sctp_sowwakeup_locked(inp, so) \
1003 do { \
1004 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
1005 SOCKBUF_UNLOCK(&((so)->so_snd)); \
1006 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \
1007 } else { \
1008 sowwakeup_locked(so); \
1009 } \
1010 } while (0)
1011
1012 #define sctp_sorwakeup(inp, so) \
1013 do { \
1014 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
1015 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \
1016 } else { \
1017 sorwakeup(so); \
1018 } \
1019 } while (0)
1020
1021 #define sctp_sorwakeup_locked(inp, so) \
1022 do { \
1023 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
1024 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \
1025 SOCKBUF_UNLOCK(&((so)->so_rcv)); \
1026 } else { \
1027 sorwakeup_locked(so); \
1028 } \
1029 } while (0)
1030
1031 #endif /* _KERNEL || __Userspace__ */
1032 #endif
Cache object: 6dc10a04e5e31d8669c95a55c8fc28ad
|